cograph 1.5.2

Breaking Changes

Standardized first parameter name to x across all plotting functions:
- plot_tna(): input → x
- plot_htna(): input → x (was model)
- plot_mtna(): input → x (was model)
- splot() already used x

Bug Fixes

Fixed tplot() default margins causing tiny plots compared to splot()

Documentation

Added qgraph to splot migration guide (vignettes/qgraph-to-splot.Rmd)
Added multi-group, multi-cluster, and multilevel networks vignette (vignettes/multi_network.Rmd)

cograph 1.5.1

Breaking Changes (with backwards compatibility)

The following parameters have been renamed for consistency. The old names still work but emit deprecation warnings:

Old Name	New Name	Reason
`esize`	`edge_size`	Add `edge_` prefix, expand abbreviation
`cut`	`edge_cutoff`	Add `edge_` prefix, clarify meaning
`usePCH`	`use_pch`	Fix camelCase to snake_case
`positive_color`	`edge_positive_color`	Add `edge_` prefix (matches theme storage)
`negative_color`	`edge_negative_color`	Add `edge_` prefix (matches theme storage)
`donut_border_lty`	`donut_line_type`	Expand `lty` abbreviation

Improvements

edge_label_fontface now accepts string values (“plain”, “bold”, “italic”, “bold.italic”) in addition to numeric values, matching other fontface parameters
Added deprecation helper infrastructure for backwards-compatible parameter renaming
Standardized all public API parameters to use consistent snake_case naming

cograph 1.4.0

New Features

Added mlna() for multilevel network visualization with 3D perspective
Added mtna() for multi-cluster network visualization
Added plot_htna() for hierarchical multi-group polygon network layouts with circular layout option
Added tplot() as qgraph drop-in replacement
Added arrow_angle parameter for customizable arrowheads

Bug Fixes

Fixed Rd cross-reference warning in splot documentation
Fixed pie/donut segment divider lines when border width is 0

cograph 1.3.1

New Features

Added edge_start_dot_density parameter for TNA-style dotted edges
Added direct support for tna objects via from_tna()
Added direct support for statnet network and qgraph objects
Added auto-conversion of pie_values vector to donut_fill when values are in [0,1]
Removed underscore prefix requirement for custom SVG shapes

Bug Fixes

Fixed TNA defaults being overwritten in splot()
Fixed self-loop edge labels and adjusted dotted pattern spacing
Fixed donut_shape validation error with custom SVG shapes
Fixed title clipping issue
Fixed edge rendering crash
Fixed R CMD check errors and warnings

Improvements

Added strict vectorization for node/edge label and donut parameters
Added edge_scale_mode validation
Improved roxygen documentation
Added TNA plotting defaults and improved dotted edge style

cograph 1.2.7

Bug Fixes

Fixed oversized nodes in from_qgraph() with layout override
Fixed oval layout: use uniform scaling in normalize_coords()
Fixed edge label alignment issues in from_qgraph()
Fixed nrow(el) crash: qgraph Edgelist is a list, not data.frame
Fixed misaligned edge labels by reordering per-edge vectors
Fixed oval layout node distortion and donut fill for from_qgraph()

Improvements

Dropped qgraph cut-based edge_color/edge_width and cut param

cograph 1.2.6

New Features

Added donut_empty parameter
Added from_qgraph() function for qgraph compatibility

Bug Fixes

Fixed oval layout_info guard
Fixed curvature extraction to only pass scalar values

Improvements

Scaled down edge width, label size, and arrow size from qgraph values
Improved curvature, threshold/minimum, donut ratio, and node size defaults
Rewrote from_qgraph() to read resolved graphAttributes

cograph 1.2.0

New Features

Added soplot() qgraph-compatible plotting function
Added layout_oval() function for oval/ellipse layouts
Added layout_scale parameter to expand/contract network layout
Added layout_scale = "auto" for node-count based scaling
Added Gephi Fruchterman-Reingold layout algorithm
Added edge_start_style parameter for direction indication
Added start segment styling to edge drawing functions

Bug Fixes

Fixed soplot curving and edge defaults to match splot behavior
Fixed rescale_layout to use uniform scaling, preserving oval aspect ratio
Fixed edge scaling producing abnormally thick edges
Fixed invalid par(pin) error on exit

Improvements

Added unified parameter scaling for splot/soplot alignment
Synced all splot() parameters to soplot() for full feature parity

cograph 1.1.0

New Features

Added splot() function for base R graphics network plotting
Added polygon donuts, AI shapes, and SVG support
Added shadow labels and text control options
Added double donut nodes with separate border controls
Added edge CI underlays and template-based edge labels
Added comprehensive legend support for groups, edge colors, and node sizes
Added high resolution output support
Added edge curves mode and label styling options
Added bidirectional arrows, loop rotation, and curve controls

Bug Fixes

Fixed donut rendering bug and simplified donut_color API
Fixed arrow positioning and curve direction for qgraph-style edges
Fixed edge label positioning to avoid overlap with edge lines
Fixed inward curve direction for splot edges
Fixed self-loop rendering with qgraph-style circular arcs
Fixed arrow placement on non-square viewports
Fixed reciprocal edge auto-separation

Improvements

Unified splot() and soplot() argument syntax with snake_case
Standardized curve rules for splot and soplot
Added layout rescaling to soplot for consistent rendering with splot
Donut/pie content now drawn inside node boundary for visible arrows

cograph 1.0.0

Initial release of cograph network visualization package